I don't know if this is the right place to report this problem, but I couldn't find kasync on bugs.kde.org.
I'm building packages for kube and all its dependencies for the Archlinux AUR and I have a problem with kasync and sink. I get this warning while compiling kasync:
In file included from /home/marco/pkg/kasync-git/src/kasync/src/future.cpp:18:0:
/home/marco/pkg/kasync-git/src/kasync/src/future.h:496:73: warning: ‘visibility’ attribute ignored on non-class types [-Wattributes]
QDebug& KASYNC_EXPORT operator<<(QDebug &dbg, const KAsync::Error &error);
^And then I get this error while compiling sink:
../common/libsink.so.0.1: riferimento non definito a "operator<<(QDebug&, KAsync::Error const&)" collect2: error: ld returned 1 exit status make[2]: *** [synchronizer/CMakeFiles/sink_synchronizer.dir/build.make:125: synchronizer/sink_synchronizer] Error 1 make[1]: *** [CMakeFiles/Makefile2:990: synchronizer/CMakeFiles/sink_synchronizer.dir/all] Error 2 make: *** [Makefile:139: all] Error 2
I found this message on the kdevelop-devel mailing list about the same topic, so I tried replacing line 496 of file future.h with this one:
KASYNC_EXPORT QDebug& operator<<(QDebug &dbg, const KAsync::Error &error);
In this way I compiled kasync without warnings and sink without errors.
I'm using these commands to build both kasync and sink, maybe I'm missing something:
cmake -DCMAKE_INSTALL_PREFIX=/usr \
-DCMAKE_BUILD_TYPE=Release \
-DLIB_INSTALL_DIR=lib \
-DKDE_INSTALL_USE_QT_SYS_PATHS=ON
make